27) Control of h assume you need to increase your heart ratehAdene eart rate is

Question

27) Control of h assume you need to increase your heart ratehAdene eart rate is key to providing enough oxygen to the tissue that need it. Let's 1) What are the neurotransmitters and receptor types used in the sympathetic branch of the autonomic nervous system. Be sure to consider the neurons and target tissue. On the graph of the pacemaker cells below: 2) a) Correctly label the axis b Indicate what is causing the membrane potential to change throughout the pacemaker potential and action potential. Each portion should be labeled 3 At the level of the pacemaker cells, describe two specific ways that you could increase heart rate. You do not need to do the math. er cells cause APs in contractile muscle cells, which undergo EC coupling and ultimately cross-bridge cycling Explain the steps of cross-bridge cycling in cardiac muscle (same as skeletal) a)

Explanation / Answer

Ans-1 the neurotransmitters which are released by the sympathetic nervous system are acetylcholine and noradrenaline and their receptors are nictonic acetylcholine receptor and adnergenic receptors respectively.

Acetylcholine bind to postganglionic neurons and noradrenaline binds to peripheral neurons. The target tissue in both the cases are eye pupil and cardiovascular tissue.

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